In medium mixing bowl, stir together red pepper, mushrooms, soup, sour cream, pepper, garlic powder, seasoned salt, celery seed, almonds and green beans. Pour into a greased 2-quart casserole. Cover and bake in preheated 350 degrees F oven for 50 to 60 minutes or until green beans are tender. Uncover and sprinkle top evenly with crispy fried onions. Return to oven and bake 8 minutes more until onions are toasted. Serve hot as side dish.